From: Richard Stallman <rms@gnu.org>
Date: Thu, 29 Oct 1992 06:06:53 +0000 (+0000)
Subject: (build_c_cast): Don't warn about size change between
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=c9b7f31c92fea6288955105883342fe61aab788f;p=gcc.git

(build_c_cast): Don't warn about size change between
pointer and integer if the value is constant.

From-SVN: r2645
---

diff --git a/gcc/c-typeck.c b/gcc/c-typeck.c
index 9acec10a47e..f06423e61ef 100644
--- a/gcc/c-typeck.c
+++ b/gcc/c-typeck.c
@@ -3752,15 +3752,20 @@ build_c_cast (type, expr)
 
       if (TREE_CODE (type) == INTEGER_TYPE
 	  && TREE_CODE (otype) == POINTER_TYPE
-	  && TYPE_PRECISION (type) != TYPE_PRECISION (otype))
+	  && TYPE_PRECISION (type) != TYPE_PRECISION (otype)
+	  && !TREE_CONSTANT (value))
 	warning ("cast from pointer to integer of different size");
 
       if (TREE_CODE (type) == POINTER_TYPE
 	  && TREE_CODE (otype) == INTEGER_TYPE
 	  && TYPE_PRECISION (type) != TYPE_PRECISION (otype)
+#if 0
 	  /* Don't warn about converting 0 to pointer,
 	     provided the 0 was explicit--not cast or made by folding.  */
-	  && !(TREE_CODE (value) == INTEGER_CST && integer_zerop (value)))
+	  && !(TREE_CODE (value) == INTEGER_CST && integer_zerop (value))
+#endif
+	  /* Don't warn about converting any constant.  */
+	  && !TREE_CONSTANT (value))
 	warning ("cast to pointer from integer of different size");
 
       value = convert (type, value);